EP2769939B1 - Screw conveyor for a material conveying system of construction machine - Google Patents

Screw conveyor for a material conveying system of construction machine Download PDF

Info

Publication number
EP2769939B1
EP2769939B1 EP13000906.1A EP13000906A EP2769939B1 EP 2769939 B1 EP2769939 B1 EP 2769939B1 EP 13000906 A EP13000906 A EP 13000906A EP 2769939 B1 EP2769939 B1 EP 2769939B1
Authority
EP
European Patent Office
Prior art keywords
conveyor
feeder according
road finisher
section
screw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
EP13000906.1A
Other languages
German (de)
French (fr)
Other versions
EP2769939A1 (en
Inventor
Arthur Braun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Joseph Voegele AG
Original Assignee
Joseph Voegele AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47877687&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2769939(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Joseph Voegele AG filed Critical Joseph Voegele AG
Priority to EP13000906.1A priority Critical patent/EP2769939B1/en
Priority to PL13000906T priority patent/PL2769939T3/en
Priority to JP2014020525A priority patent/JP2014163219A/en
Priority to US14/186,354 priority patent/US9334123B2/en
Priority to CN201420078751.0U priority patent/CN203959186U/en
Priority to CN201410062804.4A priority patent/CN104003121A/en
Publication of EP2769939A1 publication Critical patent/EP2769939A1/en
Publication of EP2769939B1 publication Critical patent/EP2769939B1/en
Application granted granted Critical
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/08—Screw or rotary spiral conveyors for fluent solid materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/129—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B65G33/34—Applications of driving gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B65G33/34—Applications of driving gear
    • B65G33/36—Applications of driving gear for rotating housing and screw at different speeds
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/20—Tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/18—Dissimilar materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

Definitions

  • the invention relates to a paver or skimmer with at least one material conveying system of a construction machine according to the preamble of claim 1.
  • Such road finishers are known from practice. They are mainly used for the carriage of bulk material.
  • the augers are placed in a rotating motion.
  • the drive torque required for this purpose is generally transmitted by a force introduction element fastened to the auger shaft.
  • a paver is z. B. from the US 3 270 633 A known.
  • For attachment of this force introduction element to the auger shaft usually different shaft-hub connections are used. These include, for example, splines, press fits or even tongue and groove joints. From the US 4 429 782 A
  • the attachment by means of a locking screw is known. This type of connections causes a high production and assembly costs. Due to the multi-part design and the resulting friction between the components additional wear is caused.
  • the object of the invention is therefore to provide an improved screw conveyor for a material handling system of a construction machine, which reduces the disadvantages mentioned with the help of structurally simple means possible or completely avoids.
  • the paver according to the invention is characterized in that a conveyor section configured to carry bulk goods and a drive section configured to receive a drive torque or a driving force and transfer them to the conveyor section are friction welded together.
  • the connection of the two sections by means of friction welding offers several advantages. On the one hand, a relative movement between the components is prevented by the cohesive connection, thereby reducing wear due to friction. On the other hand, no complicated shaft-hub connections, such. As splines, press fits, or tongue and groove joints more necessary. Consequently, the production costs associated with these connections are also eliminated.
  • the conveyor section and the drive section are made of different materials.
  • the most diverse material combinations can be connected cohesively.
  • the conveyor section on the one hand and the drive section on the other hand can thereby be optimized for their respective intended use.
  • Their materials may differ in particular in terms of hardness, surface hardness, density, weight, cost, corrosion resistance and resistance to any lubricants used, or compared to the conveyed bulk material. Both materials can be metallic.
  • the material from which the conveyor section is made has a higher strength than the material from which the drive section is made.
  • the material from which the conveyor section is made has a higher hardness or surface hardness than the material from which the drive section is made. In this way, increased wear of the conveyor section resulting from the friction between its surface and the conveyed bulk material can be prevented, without at the same time the drive section must go through the same, sometimes expensive, hardening process.
  • the screw conveyor is suitable for high operating temperatures, preferably temperatures of at least 150 ° C., more preferably temperatures of over 200 ° C.
  • a suitability for such operating temperatures is therefore present if the component and / or material properties of the screw conveyor do not change adversely in this temperature range.
  • adverse changes include, for example, a significant reduction in strength, deformation, accelerated oxidation of the screw conveyor, embrittlement of the screw material, or acceleration of aging processes that would shorten the life of the screw conveyor.
  • the conveyor screw is suitable for conveying bulk material having a grain size in the range between 0 mm and 180 mm, preferably between 0 mm and 120 mm, particularly preferably between 0 mm and 80 mm.
  • the suitability for the carriage of bulk goods of a certain grain size depends essentially of geometric parameters of the screw conveyor, such. As the pitch, the surface quality, the blade diameter, or the slope of the worm thread from.
  • the screw conveyor is suitable for conveying bituminous mixtures, in particular asphalt. Again, it is due to the toughness of such materials to provide appropriate strength of the screw conveyor. Likewise, it may be advantageous to counteract the adhesion tendency of bituminous mixtures, for example by providing a corresponding surface quality or roughness. Again, non-stick measures such. B. coatings conceivable.
  • the adaptation of the pitch of the worm thread may also have a favorable effect on the suitability for the promotion of bituminous mixtures, especially asphalt.
  • the speed of at least one screw conveyor is infinitely adjustable. In this way, the delivery rate can be adjusted specifically become.
  • the material flow can also be specifically controlled in different directions.
  • the material handling system can be used in the construction machine as a transverse conveyor system and / or as a longitudinal conveyor system.
  • FIG. 1 is a construction machine 1, in this embodiment, a paver, shown in a perspective view of the rear right in the direction of travel.
  • a material bunker 2 arranged in front in the direction of travel, bulk material 3, in this case asphalt, is deposited.
  • This is conveyed by a longitudinal conveyor system (not visible) against the direction of travel to the rear.
  • transverse conveyor system 4 transversely to the direction of travel of the construction machine.
  • two inventive Feed screws 5 used.
  • the asphalt is smoothed and compacted by a screed, not shown, so that a flat asphalt layer is formed.
  • the exemplary embodiment shows the material conveying system 4 by way of example as a transverse conveyor system 4.
  • the material conveying system 4 is used as a longitudinal conveyor system.
  • the material handling system 4 comprises more than two screw conveyors 5, or only a screw conveyor 5.
  • the screw conveyor 5 according to the invention may be suitable for conveying any bulk material 3 and not only, as described in the embodiment for the transport of asphalt.
  • a conveyor screw 5 according to the invention is shown. It comprises a conveying section 6 and a drive section 7.
  • the conveying section 6 is provided for conveying the bulk material 3.
  • the driving portion 7 is configured to receive a driving force or a driving torque, to transmit it to the conveying portion, and to thus set it in a rotating motion.
  • the drive section 7 has a gear 8 for this purpose. This can be driven by a not shown further gear or by a chain, also not shown. Instead of a gear 8, however, different types of power transmission elements are equally conceivable, such as. B. pulleys.
  • the drive section 7 is connected to the conveyor section 6 at the friction weld seam 9.
  • the conveying section 6 has two flank elements 10, which further promote the bulk material 3 by rotation of the worm 5.
  • the conveying section 6 has a continuous edge.
  • the conveyor section 6 can be made of a first material 11 and the drive section 7 of a second material 12.
  • the materials 11, 12 may be the same material. However, it is advantageous if the first material 11 is adapted to the requirements of the conveyor section 6 and the second material 12 to the requirements of the drive section 7.
  • the first material 11 may have a higher hardness or surface hardness than the second material 12 in order to prevent wear due to friction with the bulk material 3.
  • the materials 11, 12 may differ in density, cost, corrosion resistance, lubricant resistance, bulk load, adhesion tendency, or tendency for cold welding.
  • the screw conveyor for use temperatures of at least 200 ° C is suitable.
  • this value can be adapted to the processing temperature of the respective bulk material 3.
  • the screw conveyor can withstand application temperatures of 100 ° C or 150 ° C without significant changes in their properties.
  • Important features that must not be adversely affected by the particular operating temperature are u. a. the strength, the tendency to oxidation and the brittleness of the material. For this purpose, aging processes that reduce the life of the screw conveyor must not be accelerated.
  • the screw conveyor in the embodiment is suitable for conveying bulk material having a grain size in the range between 0 mm and 180 mm.
  • the surface could be such that particles of bulk material do not catch on the flank elements 10.
  • the screw conveyor 5 in the present embodiment is designed for speeds in the range between 0 rpm and 250 rpm. However, it is also possible to provide other speed ranges, z. B. in the range between 0 rpm and 125 rpm. For this purpose, for example, a corresponding moment of inertia for the screw 5 can be provided. Moreover, it may be advantageous if the resonant frequency of the rotating conveyor screw 5 is outside the intended speed range.
  • the speed of the screw conveyor 5 can be adjusted continuously during operation. As a result, the delivery volume of the screw conveyor 5 can be tailored to the needs.
  • the material handling system 4 or the construction machine 1 may comprise any number of screw conveyors 5.
  • two screw conveyors 5a and 5b are provided. These are operable independently, d. H. the speed of the screw conveyor 5a can be adjusted independently of the speed of the screw conveyor 5b and vice versa. This can be taken into account when cornering the paver 1, a difference in material requirements between the two sides of the paver. For example, if the auger 5a is on the outside of the bend, it must travel at a higher speed than the auger 5b located on the inside of the bend, since a longer distance must be traveled on the outside of the bend, and therefore the need for material is greater is. In addition, unnecessary and the subsequent road surface quality detrimental accumulation of material on the inside screw conveyor screw 5b can be avoided.
  • the invention has been described with reference to a paver. However, it can just as well be realized on any construction machine, in particular on a feeder.
  • the material handling system 4 can promote the bulk material 3 in any direction with respect to the direction of travel of the construction machine 1, z. B. along the direction of travel or transversely to the direction of travel, as described in the embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Screw Conveyors (AREA)

Description

Die Erfindung bezieht sich auf einem Straßenfertiger oder Beschiker mit mindestens einem Materialfördersystem einer Baumaschine gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a paver or skimmer with at least one material conveying system of a construction machine according to the preamble of claim 1.

Solche Straßenfertigern sind aus der Praxis bekannt. Sie werden vorwiegend zur Beförderung von Schüttgut verwendet. Die Förderschnecken werden dabei in eine rotierende Bewegung versetzt. Das dazu notwendige Antriebsmoment wird in der Regel von einem an der Förderschneckenwelle befestigten Krafteinleitungselement übertragen. Ein solcher Straßenfertiger ist z. B. aus der US 3 270 633 A bekannt. Zur Befestigung dieses Krafteinleitungselements an der Förderschneckenwelle werden in der Regel unterschiedliche Welle-Nabe-Verbindungen eingesetzt. Dazu gehören beispielsweise Keilwellenverzahnungen, Presssitze oder auch Nut- und Federverbindungen. Aus der US 4 429 782 A ist außerdem die Befestigung mit Hilfe einer Feststellschraube bekannt. Diese Art der Verbindungen verursacht einen hohen Fertigungs- und Montageaufwand. Durch die mehrteilige Ausführung und die daraus resultierende Reibung zwischen den Bauteilen wird zusätzlich Verschleiß verursacht.Such road finishers are known from practice. They are mainly used for the carriage of bulk material. The augers are placed in a rotating motion. The drive torque required for this purpose is generally transmitted by a force introduction element fastened to the auger shaft. Such a paver is z. B. from the US 3 270 633 A known. For attachment of this force introduction element to the auger shaft usually different shaft-hub connections are used. These include, for example, splines, press fits or even tongue and groove joints. From the US 4 429 782 A In addition, the attachment by means of a locking screw is known. This type of connections causes a high production and assembly costs. Due to the multi-part design and the resulting friction between the components additional wear is caused.

Aus einem anderen Gebiet der Technik ist bekannt, Lagerelemente mittels Reibschweißen an einer Schneckenwelle zu befestigen, bspw. aus der JP H08 035 751 A .From another field of the art is known to fasten bearing elements by means of friction welding on a worm shaft, for example. From the JP H08 035 751 A ,

Aufgabe der Erfindung ist es daher, eine verbesserte Förderschnecke für ein Materialfördersystem einer Baumaschine zu schaffen, die die genannten Nachteile mit Hilfe von konstruktiv möglichst einfachen Mitteln vermindert oder aber gänzlich vermeidet.The object of the invention is therefore to provide an improved screw conveyor for a material handling system of a construction machine, which reduces the disadvantages mentioned with the help of structurally simple means possible or completely avoids.

Diese Aufgabe wird gelöst mit den Merkmalen des Anspruchs 1. Vorteilhafte Weiterbildungen sind in den Unteransprüchen gegeben.This object is achieved with the features of claim 1. Advantageous developments are given in the dependent claims.

Der erfindungsgemäße Straßenfertiger zeichnet sich dadurch aus, dass ein Förderabschnitt, der zur Beförderung von Schüttgut konfiguriert ist, und ein Antriebsabschnitt, der dazu eingerichtet ist, ein Antriebsmoment oder eine Antriebskraft aufzunehmen und auf den Förderabschnitt zu übertragen, durch Reibschweißen miteinander verbunden sind. Die Verbindung der beiden Abschnitte mittels Reibschweißen bietet dabei gleich mehrere Vorteile. Zum einen wird durch die stoffschlüssige Verbindung eine Relativbewegung zwischen den Bauteilen verhindert, und dadurch Verschleiß durch Reibung reduziert. Zum anderen sind keine aufwendigen Welle-Nabe-Verbindungen, wie z. B. Keilwellen, Presssitze, oder aber Nut- und Federverbindungen mehr nötig. Folglich entfällt auch der mit diesen Verbindungen assoziierte Fertigungsaufwand.The paver according to the invention is characterized in that a conveyor section configured to carry bulk goods and a drive section configured to receive a drive torque or a driving force and transfer them to the conveyor section are friction welded together. The connection of the two sections by means of friction welding offers several advantages. On the one hand, a relative movement between the components is prevented by the cohesive connection, thereby reducing wear due to friction. On the other hand, no complicated shaft-hub connections, such. As splines, press fits, or tongue and groove joints more necessary. Consequently, the production costs associated with these connections are also eliminated.

Es kann vorteilhaft sein, wenn der Förderabschnitt und der Antriebsabschnitt aus unterschiedlichen Werkstoffen hergestellt sind. Hier kommt ein weiterer Vorteil der Verbindung mittels Reibschweißen zum Tragen. Im Gegensatz zu anderen stoffschlüssigen Verfahren können die unterschiedlichsten Werkstoffpaarungen stoffschlüssig verbunden werden. Der Förderabschnitt einerseits und der Antriebsabschnitt andererseits können dadurch auf ihren jeweiligen Einsatzzweck hin optimiert werden. Ihre Werkstoffe können sich dabei insbesondere hinsichtlich Härte, Oberflächenhärte, Dichte, Gewicht, Kosten, Korrosionsbeständigkeit sowie Beständigkeit gegenüber gegebenenfalls verwendeten Schmiermitteln, bzw. gegenüber dem geförderten Schuttgut unterscheiden. Beide Werkstoffe können metallisch sein.It may be advantageous if the conveyor section and the drive section are made of different materials. Here comes another advantage of the compound by friction welding to fruition. In contrast to other cohesive methods, the most diverse material combinations can be connected cohesively. The conveyor section on the one hand and the drive section on the other hand can thereby be optimized for their respective intended use. Their materials may differ in particular in terms of hardness, surface hardness, density, weight, cost, corrosion resistance and resistance to any lubricants used, or compared to the conveyed bulk material. Both materials can be metallic.

Denkbar ist es, dass der Werkstoff, aus dem der Förderabschnitt hergestellt ist, eine höhere Festigkeit aufweist als der Werkstoff, aus dem der Antriebsabschnitt hergestellt ist.It is conceivable that the material from which the conveyor section is made, has a higher strength than the material from which the drive section is made.

Es ist zweckmäßig, wenn der Werkstoff, aus dem der Förderabschnitt hergestellt ist, eine höhere Härte bzw. Oberflächenhärte aufweist als der Werkstoff, aus dem der Antriebsabschnitt hergestellt ist. Auf diese Art und Weise kann erhöhtem Verschleiß des Förderabschnitts, der aus der Reibung zwischen dessen Oberfläche und dem geförderten Schüttgut resultiert, vorgebeugt werden, ohne dass gleichzeitig der Antriebsabschnitt das gleiche, mitunter teure, Härteverfahren durchlaufen muss.It is expedient if the material from which the conveyor section is made has a higher hardness or surface hardness than the material from which the drive section is made. In this way, increased wear of the conveyor section resulting from the friction between its surface and the conveyed bulk material can be prevented, without at the same time the drive section must go through the same, sometimes expensive, hardening process.

Es ist vorteilhaft, wenn die Förderschnecke für hohe Einsatztemperaturen geeignet ist, bevorzugt Temperaturen von mindestens 150°C, besonders bevorzugt Temperaturen von über 200°C. Eine Eignung für derartige Einsatztemperaturen liegt demnach vor, wenn sich die Bauteil- und/oder Werkstoffeigenschaften der Förderschnecke in diesem Temperaturbereichen nicht nachteilig verändern. Zu solchen nachteiligen Veränderungen zählen beispielsweise eine signifikante Verringerung der Festigkeit, eine Verformung, eine beschleunigte Oxidation der Förderschnecke, die Versprödung des Schneckenwerkstoffs, oder aber die Beschleunigung von Alterungsprozessen, welche die Lebensdauer der Förderschnecke verkürzen würden.It is advantageous if the screw conveyor is suitable for high operating temperatures, preferably temperatures of at least 150 ° C., more preferably temperatures of over 200 ° C. A suitability for such operating temperatures is therefore present if the component and / or material properties of the screw conveyor do not change adversely in this temperature range. Such adverse changes include, for example, a significant reduction in strength, deformation, accelerated oxidation of the screw conveyor, embrittlement of the screw material, or acceleration of aging processes that would shorten the life of the screw conveyor.

Zweckmäßig ist es, wenn die Förderschnecke zum Befördern von Schüttgut geeignet ist, das eine Körnung im Bereich zwischen 0 mm und 180 mm, bevorzugt zwischen 0 mm und 120 mm, besonders bevorzugt zwischen 0 mm und 80 mm, aufweist. Die Eignung für die Beförderung von Schüttgütern einer bestimmten Körnung hängt dabei im Wesentlichen von geometrischen Parametern der Förderschnecke, wie z. B. der Ganghöhe, der Oberflächenqualität, dem Blattdurchmesser, oder aber der Steigung des Schneckengewindes ab.It is expedient if the conveyor screw is suitable for conveying bulk material having a grain size in the range between 0 mm and 180 mm, preferably between 0 mm and 120 mm, particularly preferably between 0 mm and 80 mm. The suitability for the carriage of bulk goods of a certain grain size depends essentially of geometric parameters of the screw conveyor, such. As the pitch, the surface quality, the blade diameter, or the slope of the worm thread from.

Es hat sich als vorteilhaft erwiesen, wenn die Förderschnecke für Drehzahlen im Bereich zwischen 0 rpm (rpm = Umdrehungen pro Minute) und 250 rpm, bevorzugt zwischen 0 rpm und 125 rpm, ausgelegt ist. Solche Drehzahlen haben sich in der Praxis bewährt. Daher ist es günstig, wenn Bauteilparameter wie z. B. das Trägheitsmoment oder aber die Resonanzfrequenz der Förderschnecke an diesen Drehzahlbereich angepasst sind. Denkbar ist es außerdem, dass die Förderschnecke zum Befördern von Schüttgut geeignet ist, das eine Viskosität im Bereich zwischen 105 und 1018 mPa·s (Millipascalsekunde) aufweist. Zu diesem Zweck muss die Schnecke eine entsprechende Festigkeit aufweisen. Darüber hinaus ist eine geeignete Oberflächengüte und insbesondere Oberflächenrauheit vorzusehen. Denkbar sind hier auch verschiedene Antihaftmaßnahmen, wie z. B. Beschichtungen. Auch eine entsprechende Steigung des Schneckengewindes kann die Eignung zur Förderung von solchen Materialien positiv beeinflussen.It has proved to be advantageous if the screw conveyor for speeds in the range between 0 rpm (rpm = revolutions per minute) and 250 rpm, preferably between 0 rpm and 125 rpm, designed. Such speeds have been proven in practice. Therefore, it is advantageous if component parameters such. B. the moment of inertia or the resonance frequency of the screw conveyor are adapted to this speed range. It is also conceivable that the screw conveyor is suitable for conveying bulk material, which has a viscosity in the range between 10 5 and 10 18 mPa · s (millipascal second). For this purpose, the screw must have a corresponding strength. In addition, a suitable surface quality and in particular surface roughness is to be provided. Also conceivable here are various non-stick measures, such. B. coatings. Also, a corresponding pitch of the worm thread can positively influence the suitability for the promotion of such materials.

Besonders günstig ist es, wenn die Förderschnecke zur Förderung von bituminösen Mischgütern, insbesondere Asphalt, geeignet ist. Auch hier gilt es aufgrund der Zähigkeit von solchen Materialien eine entsprechende Festigkeit der Förderschnecke vorzusehen. Ebenso kann es vorteilhaft sein, der Adhäsionsneigung von bituminösen Mischgütern entgegenzuwirken, beispielsweise durch das Vorsehen einer entsprechenden Oberflächenqualität bzw. -rauheit. Auch hier sind Antihaftmaßnahmen wie z. B. Beschichtungen denkbar. Die Anpassung der Steigung des Schneckengewindes kann sich ebenfalls günstig auf die Eignung zur Förderung von bituminösen Mischgütern, insbesondere Asphalt, auswirken.It is particularly favorable if the screw conveyor is suitable for conveying bituminous mixtures, in particular asphalt. Again, it is due to the toughness of such materials to provide appropriate strength of the screw conveyor. Likewise, it may be advantageous to counteract the adhesion tendency of bituminous mixtures, for example by providing a corresponding surface quality or roughness. Again, non-stick measures such. B. coatings conceivable. The adaptation of the pitch of the worm thread may also have a favorable effect on the suitability for the promotion of bituminous mixtures, especially asphalt.

Es hat sich als zweckmäßig erwiesen, wenn die Drehzahl mindestens einer Förderschnecke stufenlos verstellbar ist. Auf diese Weise kann die Förderleistung gezielt angepasst werden. Bei der Verwendung von mehreren Förderschnecken kann zudem der Materialfluss in verschiedenen Richtungen gezielt gesteuert werden. Besonders günstig ist es bei der Verwendung von mehreren Förderschnecken, wenn die Drehzahl der jeweiligen Förderschnecken unabhängig voneinander verstellbar ist.It has proved to be useful if the speed of at least one screw conveyor is infinitely adjustable. In this way, the delivery rate can be adjusted specifically become. When using several screw conveyors, the material flow can also be specifically controlled in different directions. When using a plurality of screw conveyors, it is particularly favorable if the rotational speed of the respective screw conveyors can be adjusted independently of one another.

Darüber hinaus ist es günstig, wenn die Verstellung während des Betriebs erfolgen kann. In einer weiteren Variante können in einem Materialfördersystem, das mehrere Förderschnecken verwendet, diese Fördeschnecken unabhängig voneinander betreibbar sein. Dadurch kann der Materialfluss gezielt beeinflusst werden. Zusätzlich können eventuelle Inhomogenitäten des Materials hinsichtlich Temperaturverteilung oder Körnungsverteilung durch einen gezielten Durchmischungsprozess ausgeglichen werden.In addition, it is advantageous if the adjustment can take place during operation. In a further variant, in a material conveying system which uses a plurality of conveying screws, these conveying screws can be operated independently of one another. As a result, the material flow can be specifically influenced. In addition, possible inhomogeneities of the material with regard to temperature distribution or grain distribution can be compensated for by a targeted mixing process.

Vorstellbar ist es, dass das Materialfördersystem in der Baumaschine als Querfördersystem und/oder als Längsfördersystem einsetzbar ist.It is conceivable that the material handling system can be used in the construction machine as a transverse conveyor system and / or as a longitudinal conveyor system.

Im Folgenden wird ein vorteilhaftes Ausführungsbeispiel der Erfindung anhand von Zeichnungen erläutert.

Figur 1
zeigt eine perspektivische Ansicht einer Baumaschine, in diesem Fall eines Straßenfertigers, in der ein erfindungsgemäßes Materialfördersystem sowie eine erfindungsgemäße Förderschnecke verbaut sind.
Figur 2
zeigt eine erfindungsgemäße Förderschnecke.
In the following, an advantageous embodiment of the invention will be explained with reference to drawings.
FIG. 1
shows a perspective view of a construction machine, in this case a paver in which a material handling system according to the invention and a screw conveyor according to the invention are installed.
FIG. 2
shows a screw conveyor according to the invention.

In Figur 1 ist eine Baumaschine 1, in diesem Ausführungsbeispiel ein Straßenfertiger, in einer perspektivischen Ansicht von in Fahrtrichtung hinten rechts dargestellt. In einem in Fahrtrichtung vorne angeordneten Materialbunker 2 ist Schüttgut 3, in diesem Fall Asphalt, deponiert. Dieses wird von einem Längsfördersystem (nicht sichtbar) entgegen der Fahrtrichtung nach hinten gefördert. Dort wird es von einem weiteren Materialfördersystem 4, im weiteren Verlauf als Querfördersystem 4 bezeichnet, quer zur Fahrtrichtung der Baumaschine verteilt. Im gezeigten Ausführungsbeispiel werden dafür zwei erfindungsgemäße Förderschnecken 5 eingesetzt. Anschließend wird der Asphalt durch eine nicht gezeigte Bohle geglättet und verdichtet, sodass eine ebene Asphaltschicht entsteht.In FIG. 1 is a construction machine 1, in this embodiment, a paver, shown in a perspective view of the rear right in the direction of travel. In a material bunker 2 arranged in front in the direction of travel, bulk material 3, in this case asphalt, is deposited. This is conveyed by a longitudinal conveyor system (not visible) against the direction of travel to the rear. There it is distributed by another material conveyor system 4, hereinafter referred to as transverse conveyor system 4, transversely to the direction of travel of the construction machine. In the embodiment shown, two inventive Feed screws 5 used. Subsequently, the asphalt is smoothed and compacted by a screed, not shown, so that a flat asphalt layer is formed.

Das Ausführungsbeispiel zeigt das Materialfördersystem 4 beispielhaft als Querfördersystem 4. Es ist jedoch ebenso möglich, dass das Materialfördersystem 4 als Längsfördersystem eingesetzt wird. Außerdem ist es möglich, dass das Materialfördersystem 4 mehr als zwei Förderschnecken 5 umfasst, oder aber lediglich eine Förderschnecke 5. Zudem können die erfindungsgemäßen Förderschnecken 5 zur Förderung von beliebigem Schüttgut 3 geeignet sein und nicht nur, wie im Ausführungsbeispiel beschrieben zur Beförderung von Asphalt.The exemplary embodiment shows the material conveying system 4 by way of example as a transverse conveyor system 4. However, it is also possible that the material conveying system 4 is used as a longitudinal conveyor system. In addition, it is possible that the material handling system 4 comprises more than two screw conveyors 5, or only a screw conveyor 5. In addition, the screw conveyor 5 according to the invention may be suitable for conveying any bulk material 3 and not only, as described in the embodiment for the transport of asphalt.

In Figur 2 ist eine erfindungsgemäße Förderschnecke 5 abgebildet. Sie umfasst einen Förderabschnitt 6 und einen Antriebsabschnitt 7. Der Förderabschnitt 6 ist zur Förderung des Schüttguts 3 vorgesehen. Der Antriebsabschnitt 7 ist dazu konfiguriert, eine Antriebskraft oder ein Antriebsmoment aufzunehmen, es auf den Förderabschnitt zu übertragen, und diesen so in eine rotierende Bewegung zu versetzten. Im gezeigten Ausführungsbeispiel weist der Antriebsabschnitt 7 zu diesem Zweck ein Zahnrad 8 auf. Dieses kann durch ein nicht gezeigtes weiteres Zahnrad oder aber durch eine ebenfalls nicht gezeigte Kette angetrieben werden. Anstatt eines Zahnrads 8 sind jedoch ebenso gut andersartige Kraftübertragungselemente denkbar, wie z. B. Riemenscheiben. Der Antriebsabschnitt 7 ist an der Reibschweißnaht 9 mit dem Förderabschnitt 6 verbunden. In Figur 2 weist der Förderabschnitt 6 zwei Flankenelemente 10 auf, die durch Rotation der Schnecke 5 das Schüttgut 3 weiter fördern. Ebenso ist es jedoch denkbar, dass der Förderabschnitt 6 eine kontinuierliche Flanke aufweist.In FIG. 2 a conveyor screw 5 according to the invention is shown. It comprises a conveying section 6 and a drive section 7. The conveying section 6 is provided for conveying the bulk material 3. The driving portion 7 is configured to receive a driving force or a driving torque, to transmit it to the conveying portion, and to thus set it in a rotating motion. In the exemplary embodiment shown, the drive section 7 has a gear 8 for this purpose. This can be driven by a not shown further gear or by a chain, also not shown. Instead of a gear 8, however, different types of power transmission elements are equally conceivable, such as. B. pulleys. The drive section 7 is connected to the conveyor section 6 at the friction weld seam 9. In FIG. 2 the conveying section 6 has two flank elements 10, which further promote the bulk material 3 by rotation of the worm 5. However, it is also conceivable that the conveying section 6 has a continuous edge.

Der Förderabschnitt 6 kann dabei aus einem ersten Werkstoff 11 und der Antriebsabschnitt 7 aus einem zweiten Werkstoff 12 hergestellt sein. Bei den Werkstoffen 11, 12 kann es sich um den gleichen Werkstoff handeln. Vorteilhaft ist es jedoch, wenn der erste Werkstoff 11 den Anforderungen an den Förderabschnitt 6 und der zweite Werkstoff 12 den Anforderungen an den Antriebsabschnitt 7 angepasst ist. So kann der erste Werkstoff 11 beispielsweise eine höhere Härte oder aber Oberflächenhärte als der zweite Werkstoff 12 aufweisen, um Verschleiß durch die Reibung mit dem Schüttgut 3 vorzubeugen. Darüber hinaus können sich die Werkstoffe 11, 12 hinsichtlich Dichte, Kosten, Korrosionsbeständigkeit, Beständigkeit gegenüber Schmiermitteln bzw. dem geförderten Schüttgut, Adhäsionsneigung, oder Neigung zur Kaltverschweißung unterscheiden.The conveyor section 6 can be made of a first material 11 and the drive section 7 of a second material 12. The materials 11, 12 may be the same material. However, it is advantageous if the first material 11 is adapted to the requirements of the conveyor section 6 and the second material 12 to the requirements of the drive section 7. For example, the first material 11 may have a higher hardness or surface hardness than the second material 12 in order to prevent wear due to friction with the bulk material 3. In addition, the materials 11, 12 may differ in density, cost, corrosion resistance, lubricant resistance, bulk load, adhesion tendency, or tendency for cold welding.

In einem Fall, in dem das Zahnrad 8 durch ein weiteres Zahnrad angetrieben wird, ist es beispielsweise von großer Bedeutung, dass der Werkstoff 12 aus dem das Zahnrad 8 gefertigt ist, nicht zur Kaltverschweißung mit einem Werkstoff, aus dem das weitere Zahnrad gefertigt ist, neigt. Hingegen ist es unerheblich, wenn der Werkstoff 11 aus dem der Förderabschnitt 6 gefertigt ist, zu Kaltverschweißung mit dem Werkstoff, aus dem das weitere Zahnrad gefertigt ist, neigt, da diese Werkstoffe nicht in Kontakt miteinander kommen. Umgekehrt ist es von großer Bedeutung, dass der Werkstoff 11 aus dem der Förderabschnitt 6 gefertigt ist, beständig gegenüber dem Schüttgut 3 und eine geringe Adhäsionsneigung mit diesem aufweist. Dagegen ist es unerheblich ob der Werkstoff 12, aus dem der Antriebsabschnitt 7 gefertigt ist, zur Adhäsion mit dem Schüttgut 3 neigt, oder aber weniger beständig diesem gegenüber ist, da er in der Regel nicht mit diesem in Kontakt kommt.In a case where the gear 8 is driven by another gear, for example, it is of great importance that the material 12 from which the gear 8 is made, not for cold welding with a material from which the further gear is made, inclines. By contrast, it is irrelevant if the material 11 is made of the conveyor section 6, to cold welding with the material from which the further gear is made, tends, since these materials do not come into contact with each other. Conversely, it is of great importance that the material 11 from which the conveying section 6 is made, resistant to the bulk material 3 and has a low adhesion tendency with this. By contrast, it is irrelevant whether the material 12, from which the drive section 7 is made, tends to adhere to the bulk material 3, or is less resistant to this, since it usually does not come into contact with it.

Im vorliegenden Ausführungsbeispiel ist die Förderschnecke für Einsatztemperaturen von mindestens 200°C geeignet. Dieser Wert kann jedoch an die Verarbeitungstemperatur des jeweiligen Schüttguts 3 angepasst werden. Werden z. B. Niedrigtemperaturasphalte oder Kaltasphalte verwendet, kann es genügen, wenn die Förderschnecke Einsatztemperaturen von 100°C bzw. 150°C ohne wesentliche Veränderungen ihrer Eigenschaften übersteht. Wichtige Eigenschaften, die sich bei der jeweiligen Einsatztemperatur nicht nachteilig verändern dürfen, sind u. a. die Festigkeit, die Oxidationsneigung und die Sprödigkeit des Werkstoffs. Dazu dürfen Alterungsprozesse, die die Lebensdauer der Förderschnecke verringern nicht beschleunigt werden.In the present embodiment, the screw conveyor for use temperatures of at least 200 ° C is suitable. However, this value can be adapted to the processing temperature of the respective bulk material 3. Are z. As low-temperature asphalts or Kaltasphalte used, it may be sufficient if the screw conveyor can withstand application temperatures of 100 ° C or 150 ° C without significant changes in their properties. Important features that must not be adversely affected by the particular operating temperature are u. a. the strength, the tendency to oxidation and the brittleness of the material. For this purpose, aging processes that reduce the life of the screw conveyor must not be accelerated.

Die Förderschnecke im Ausführungsbeispiel ist zum Befördern von Schüttgut, das eine Körnung im Bereich zwischen 0 mm und 180 mm aufweist, geeignet. Das bedeutet, sie kann z. B. eine entsprechende Ganghöhe aufweisen, die groß genug ist, um die größten Schüttgutpartikel aufzunehmen, aber auch eng genug, um eine effiziente Förderung zu gewährleisten. Des Weiteren könnte die Oberfläche derart beschaffen sein, dass Schüttgutpartikel nicht an den Flankenelementen 10 hängenbleiben. Außerdem ist es vorteilhaft, wenn der Durchmesser der Schneckenflanke gewährleistet, dass Partikel des Schüttguts 3 nicht ungewollt aus der Förderschnecke 5 entweichen. Darüber hinaus kann es zweckmäßig sein, abhängig von der gewählten Ganghöhe eine passende Steigung des Schneckengewindes vorzusehen.The screw conveyor in the embodiment is suitable for conveying bulk material having a grain size in the range between 0 mm and 180 mm. This means she can z. B. have a corresponding pitch that is large enough to accommodate the largest bulk particles, but also close enough to ensure efficient promotion. Furthermore, the surface could be such that particles of bulk material do not catch on the flank elements 10. Moreover, it is advantageous if the diameter of the screw flank ensures that particles of the bulk material 3 do not unintentionally escape from the screw conveyor 5. In addition, it may be appropriate to provide a suitable pitch of the worm thread depending on the selected pitch.

Die Förderschnecke 5 im vorliegenden Ausführungsbeispiel ist für Drehzahlen im Bereich zwischen 0 rpm und 250 rpm ausgelegt. Es ist jedoch auch möglich, andere Drehzahlbereiche vorzusehen, z. B. im Bereich zwischen 0 rpm und 125 rpm. Dazu kann beispielsweise ein entsprechendes Trägheitsmoment für die Schnecke 5 vorgesehen werden. Auβerdem kann es vorteilhaft sein, wenn die Resonanzfrequenz der rotierenden Förderschnecke 5 außerhalb des vorgesehenen Drehzahlbereichs liegt.The screw conveyor 5 in the present embodiment is designed for speeds in the range between 0 rpm and 250 rpm. However, it is also possible to provide other speed ranges, z. B. in the range between 0 rpm and 125 rpm. For this purpose, for example, a corresponding moment of inertia for the screw 5 can be provided. Moreover, it may be advantageous if the resonant frequency of the rotating conveyor screw 5 is outside the intended speed range.

Die Drehzahl der Förderschnecke 5 kann dabei während des Betriebs stufenlos verstellt werden. Dadurch lässt sich das Fördervolumen der Förderschnecke 5 gezielt an den Bedarf anpassen.The speed of the screw conveyor 5 can be adjusted continuously during operation. As a result, the delivery volume of the screw conveyor 5 can be tailored to the needs.

Das Materialfördersystem 4 bzw. die Baumaschine 1 kann beliebig viele Förderschnecken 5 umfassen. Im gezeigten Ausführungsbeispiel sind zwei Förderschnecken 5a und 5b vorgesehen. Diese sind unabhängig voneinander betreibbar, d. h. die Drehzahl der Förderschnecke 5a lässt sich unabhängig von der Drehzahl der Förderschnecke 5b einstellen und umgekehrt. Dadurch kann bei einer Kurvenfahrt des Straßenfertigers 1 ein Unterschied im Materialbedarf zwischen den beiden Seiten des Straßenfertigers berücksichtig werden. Befindet sich die Förderschnecke 5a beispielsweise auf der kurvenäußeren Seite, muss sie mit einer höheren Drehzahl laufen als die Förderschnecke 5b, die sich auf der kurveninneren Seite befindet, da auf der kurvenäußeren Seite eine längere Distanz zurückgelegt werden muss, und daher der Bedarf an Material größer ist. Außerdem können unnötige und der späteren Straßenbelagsqualität abträgliche Materialanhäufungen an der kurveninneren Förderschnecke 5b vermieden werden.The material handling system 4 or the construction machine 1 may comprise any number of screw conveyors 5. In the illustrated embodiment, two screw conveyors 5a and 5b are provided. These are operable independently, d. H. the speed of the screw conveyor 5a can be adjusted independently of the speed of the screw conveyor 5b and vice versa. This can be taken into account when cornering the paver 1, a difference in material requirements between the two sides of the paver. For example, if the auger 5a is on the outside of the bend, it must travel at a higher speed than the auger 5b located on the inside of the bend, since a longer distance must be traveled on the outside of the bend, and therefore the need for material is greater is. In addition, unnecessary and the subsequent road surface quality detrimental accumulation of material on the inside screw conveyor screw 5b can be avoided.

Im vorstehend beschriebenen Ausführungsbeispiel wurde die Erfindung anhand eines Straßenfertigers beschrieben. Sie kann jedoch ebenso gut an einer beliebigen Baumaschine, insbesondere an einem Beschicker verwirklicht werden.In the embodiment described above, the invention has been described with reference to a paver. However, it can just as well be realized on any construction machine, in particular on a feeder.

Das Materialfördersystem 4 kann dabei das Schüttgut 3 in eine beliebige Richtung mit Bezug auf die Fahrtrichtung der Baumaschine 1 fördern, z. B. längs zur Fahrtrichtung oder aber quer zur Fahrtrichtung, wie im Ausführungsbeispiel beschrieben.The material handling system 4 can promote the bulk material 3 in any direction with respect to the direction of travel of the construction machine 1, z. B. along the direction of travel or transversely to the direction of travel, as described in the embodiment.

Claims (12)

  1. Road finisher (1) or feeder (1) with at least one material conveyor system (4) having at least one conveyor screw (5), which comprises:
    a conveyor section (6) configured to convey bulk material (3),
    and a driving section (7) designed to receive a driving torque or a driving force and to transmit it to the conveyor section (6),
    characterized in that the conveyor section (6) and the driving section (7) are connected to each other by friction welding.
  2. Road finisher or feeder according to claim 1, characterized in that the conveyor section (6) and the driving section (7) are made of different materials (11, 12).
  3. Road finisher or feeder according to one of the preceding claims,
    characterized in that the material (11) of which the conveyor section (6) is made has a higher strength than the material (12) of which the driving section (7) is made.
  4. Road finisher or feeder according to one of the preceding claims,
    characterized in that the material (11) of which the conveyor section (6) is made has a higher surface hardness than the material (12) of which the driving section (7) is made.
  5. Road finisher or feeder according to one of the preceding claims,
    characterized in that the conveyor screw (5) is suited for application temperatures of at least 100 °C.
  6. Road finisher or feeder according to one of the preceding claims,
    characterized in that the conveyor screw (5) is suited for conveying bulk material (3) having a graining between 0 and 180 mm.
  7. Road finisher or feeder according to one of the preceding claims,
    characterized in that the conveyor screw (5) is designed for speeds within a range of between 0 and 250 revolutions per minute.
  8. Road finisher or feeder according to one of the preceding claims, characterized in that the conveyor screw (5) is suited for conveying bulk material (3) having a viscosity within a range of between 105 and 1018 mPa·s.
  9. Road finisher or feeder according to one of the preceding claims, characterized in that the conveyor screw (5) is suited for conveying bituminous mixed material, in particular asphalt.
  10. Road finisher or feeder according to one of the preceding claims, characterized in that the speed of the at least one conveyor screw (5) may be continuously variable during operation.
  11. Road finisher or feeder according to one of the preceding claims, characterized in that several conveyor screws (5a, 5b) are provided and the conveyor screws (5a, 5b) may be operated independently.
  12. Road finisher or feeder according to one of the preceding claims, characterized in that the at least one material conveyor system (4) may be employed as transverse conveyor system (4) or as longitudinal conveyor system.
EP13000906.1A 2013-02-22 2013-02-22 Screw conveyor for a material conveying system of construction machine Revoked EP2769939B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP13000906.1A EP2769939B1 (en) 2013-02-22 2013-02-22 Screw conveyor for a material conveying system of construction machine
PL13000906T PL2769939T3 (en) 2013-02-22 2013-02-22 Screw conveyor for a material conveying system of construction machine
JP2014020525A JP2014163219A (en) 2013-02-22 2014-02-05 Conveyor screw for material conveyor system of construction machine
US14/186,354 US9334123B2 (en) 2013-02-22 2014-02-21 Conveyor screw for a material conveyor system of a construction machine
CN201420078751.0U CN203959186U (en) 2013-02-22 2014-02-24 Conveying screw rod, material-transporting system and vehicle for construction
CN201410062804.4A CN104003121A (en) 2013-02-22 2014-02-24 Conveyor screw for a material conveyor system of a construction machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13000906.1A EP2769939B1 (en) 2013-02-22 2013-02-22 Screw conveyor for a material conveying system of construction machine

Publications (2)

Publication Number Publication Date
EP2769939A1 EP2769939A1 (en) 2014-08-27
EP2769939B1 true EP2769939B1 (en) 2015-04-08

Family

ID=47877687

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13000906.1A Revoked EP2769939B1 (en) 2013-02-22 2013-02-22 Screw conveyor for a material conveying system of construction machine

Country Status (5)

Country Link
US (1) US9334123B2 (en)
EP (1) EP2769939B1 (en)
JP (1) JP2014163219A (en)
CN (2) CN104003121A (en)
PL (1) PL2769939T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2769939T3 (en) * 2013-02-22 2015-09-30 Joseph Voegele Ag Screw conveyor for a material conveying system of construction machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3270633A (en) 1963-01-14 1966-09-06 Holland Co J H Universal bituminous paving machine
US4772156A (en) 1987-04-20 1988-09-20 White Consolidated Industries, Inc. Telescoping auger construction for paving machines
JPH0835751A (en) 1994-05-16 1996-02-06 Hoshizaki Electric Co Ltd Manufacture of rotary shaft with buildup welded journal
JP3382366B2 (en) 1994-07-15 2003-03-04 有限会社きくや機械産業 Driving side support device for screw blade for asphalt finisher

Family Cites Families (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015258A (en) * 1959-11-27 1962-01-02 Jaeger Machine Co Paving material spreader
US3213703A (en) 1964-10-15 1965-10-26 Joy Mfg Co Shaft assembly
FR1479075A (en) 1965-07-22 1967-04-28 Greenside Machine Co Ltd Improvements to endless conveyor belts
US3443680A (en) 1967-03-24 1969-05-13 Westinghouse Air Brake Co Boring-type miner conveyor drive
US3577746A (en) 1969-01-29 1971-05-04 Gen Electric Self-contained lubrication system for high speed drive shaft coupling
US3967912A (en) 1974-03-18 1976-07-06 Parker Jimmy L Paver feed control
US4037713A (en) 1974-03-22 1977-07-26 Gewerkschaft Eisenhutte Westfalia Scraper-chain conveyors
DE2460099C3 (en) 1974-12-19 1980-10-09 Gewerkschaft Eisenhuette Westfalia, 4670 Luenen Chain drum for a chain conveyor, in particular for one on the cutting arm of a milling loader or the like. arranged chain scraper conveyor
DE2942916A1 (en) 1979-10-24 1981-05-14 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen MACHINE FRAME FOR CHAIN SCRAP CONVEYOR
US4429782A (en) * 1981-10-16 1984-02-07 Mcquay-Perfex Inc. Screw conveyer with removable flighting
JPS6168013U (en) 1984-10-11 1986-05-09
DE4000232A1 (en) 1990-01-06 1991-07-11 Dudweiler Untertage Masch CHAIN DRUM SHIFTING IN THE MACHINE FRAME OF A CHAIN SCRATCH CONVEYOR
JPH0733643B2 (en) * 1990-12-28 1995-04-12 株式会社新潟鉄工所 A control device for the amount of mixed material spread on a paving machine
US5232068A (en) 1992-02-14 1993-08-03 American Longwall Mining Corporation Remote lubrication system for conveyor bearing
US5279501A (en) * 1992-06-15 1994-01-18 Caterpillar Paving Products Inc. Screw conveyor
US6064030A (en) 1994-05-16 2000-05-16 Hoshizaki Denki Kabushiki Kaisha Manufacturing method of rotary shaft with hard faced journal
JP3644607B2 (en) 1995-07-12 2005-05-11 株式会社三井三池製作所 Conveyor drive device for shear loader
JP3437712B2 (en) * 1996-05-15 2003-08-18 住友建機製造株式会社 Asphalt finisher
DE19633207B4 (en) 1996-08-17 2006-05-24 Dbt Gmbh Chain drum arrangement for chain scraper conveyor
DE29724155U1 (en) 1996-08-17 2000-05-31 DBT Deutsche Bergbau-Technik GmbH, 44534 Lünen Chain drum arrangement for chain scraper conveyors
JPH11322040A (en) 1998-05-20 1999-11-24 Shin Caterpillar Mitsubishi Ltd Aggregate carrying device for paving equipment
US5980153A (en) * 1998-07-30 1999-11-09 Akzo Nobel Asphalt Applications, Inc. Telescoping auger shaft and method of manufacture
DE19845432C2 (en) 1998-10-02 2000-09-21 Dbt Gmbh Chain drum arrangement
US6227354B1 (en) 1999-06-11 2001-05-08 Longwall-Associates, Inc. Conveyor shaft support assembly
DE29915798U1 (en) 1999-09-08 2000-03-02 DBT Deutsche Bergbau-Technik GmbH, 44534 Lünen One-piece sprocket that can be assembled or disassembled from in front of the machine frame
DE10050699C1 (en) 2000-10-13 2002-06-13 Dbt Gmbh Drive station for a chain scraper conveyor for mining companies
US6390283B1 (en) * 2001-02-07 2002-05-21 Blaw-Knox Construction Equipment Corporation Cast auger gating interface
JP2003329051A (en) 2002-05-10 2003-11-19 Koyo Seiko Co Ltd Rotating shaft device
US7000759B1 (en) 2002-11-29 2006-02-21 William Devere Jones Conveyor conversion kit for replacing rollers within a conveyor system and method
JP4063703B2 (en) * 2003-04-04 2008-03-19 株式会社丸山製作所 Crankshaft manufacturing method
JP4145707B2 (en) 2003-04-18 2008-09-03 富士重工業株式会社 Belt type continuously variable transmission
US7549531B2 (en) 2005-01-07 2009-06-23 Dorner Mfg. Corp. Sanitary conveyor tip-up tail assembly
US7673741B2 (en) 2005-08-08 2010-03-09 Inter-Source Recovery Systems Apparatus and method for conveying materials
US7207435B2 (en) 2005-08-30 2007-04-24 Dorner Mfg. Corp. Conveyor belt drive sprocket locking assembly
SE533994C2 (en) * 2007-11-09 2011-03-22 Multimore Ab Coating machine for coating roadways and a procedure therefor
US8042682B2 (en) 2009-03-13 2011-10-25 Dorner Mfg. Corp. Conveyor belt drive sprocket retention system
DE202009005143U1 (en) 2009-08-14 2011-01-05 Bucyrus Europe Gmbh Reversing station for a chain scraper conveyor and sprocket assembly therefor
US8021078B2 (en) 2010-01-25 2011-09-20 Volvo Construction Equipment Ab Conveyor assembly for an asphalt paving machine
JP2012002383A (en) * 2010-06-14 2012-01-05 Hoshizaki Electric Co Ltd Auger for ice maker
US8474605B2 (en) 2010-08-31 2013-07-02 Cnh America Llc Conveyor drive shaft assembly with integrated torque limiting device
CN201932667U (en) * 2010-12-09 2011-08-17 长兴日月环保机械有限公司 Novel shaftless helical blade
WO2012090300A1 (en) 2010-12-28 2012-07-05 トヨタ自動車株式会社 Dual camshaft structure and method for assembling dual camshaft structure
CN202148003U (en) * 2011-06-17 2012-02-22 益阳鸿源稀土有限责任公司 Rare-earth ore pulp propeller screw
US8869972B2 (en) 2011-08-20 2014-10-28 Caterpillar Inc. Bimaterial flight assembly for an elevator system for a wheel tractor scraper
CN202491130U (en) * 2012-01-13 2012-10-17 承发科技有限公司 Conveying device for waste recovery
US8887901B2 (en) 2012-07-30 2014-11-18 Joy Mm Delaware, Inc. Conveyor sprocket assembly
PL2769939T3 (en) * 2013-02-22 2015-09-30 Joseph Voegele Ag Screw conveyor for a material conveying system of construction machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3270633A (en) 1963-01-14 1966-09-06 Holland Co J H Universal bituminous paving machine
US4772156A (en) 1987-04-20 1988-09-20 White Consolidated Industries, Inc. Telescoping auger construction for paving machines
JPH0835751A (en) 1994-05-16 1996-02-06 Hoshizaki Electric Co Ltd Manufacture of rotary shaft with buildup welded journal
JP3382366B2 (en) 1994-07-15 2003-03-04 有限会社きくや機械産業 Driving side support device for screw blade for asphalt finisher

Non-Patent Citations (10)

* Cited by examiner, † Cited by third party
Title
"Asphalt Paver", PAVEMENT INTERACTIVE, 7 April 2009 (2009-04-07), XP055276007, Retrieved from the Internet <URL:http://www.pavementinteractive.org/article/asphalt-paver>
"DYNAPAC LARGE WHEELED PAVER RANGE, Dynapac SD2500W/SD2500WS", ATLAS COPCO., 2016, pages 1 - 16, XP055276141
"Friction Welding", WIKIPEDIA, 20 January 2013 (2013-01-20), XP055276002, Retrieved from the Internet <URL:https://en.wikipedia.org/w/index.php? title=Friction_welding&oldid=534029948>
"Gradation and Size", PAVEMENT INTERACTIVE, 5 June 2009 (2009-06-05), XP055276006, Retrieved from the Internet <URL:http://www.pavementinteractive.org/article/gradation-and-size>
"Stirling company gets first paving machine of its kind in Scotland", PROJECT SCOTLAND, December 2012 (2012-12-01), pages 1 - 2, XP055276145, Retrieved from the Internet <URL:http://www.projectscot.com/2012/12/stirling-company-gets-first-paving-machine-of-its-kind-in-scotland/>
"Viscosity Grading", PAVEMENT INTERACTIVE, 16 August 2007 (2007-08-16), XP055276004, Retrieved from the Internet <URL:http://www.pavementinteractive.org/article/viscosity-grading>
"Volvox Tracked Pavers P7820C ABG, P8820C ABG Product", VOLVO, 2012, pages 1 - 16, XP055276134
DMPRUK: "Friction welding vehicle drive shafts", YOUTUBE, 14 October 2008 (2008-10-14), Retrieved from the Internet <URL:https://www.youtube.com/watch?v=uURlXuUt5-k>
MANUFACTURING TECHNOLOGY INC (MTI): "Inertia Friction Welding Demonstration - Manufacturing Technology, Inc.", YOUTUBE, 18 January 2009 (2009-01-18), Retrieved from the Internet <URL:https://www.youtube.com/watch?v=-aEuAK8bsQg>
RECKARD MATTHEW, RYER JOHN: "Asphalt Pavement Inspector's Manual", ALASKA DEPARTMENT OF TRANSPO RTATION & PUBLIC FACILITIES, July 2002 (2002-07-01), pages 1 - 170, XP055276008

Also Published As

Publication number Publication date
CN104003121A (en) 2014-08-27
CN203959186U (en) 2014-11-26
US9334123B2 (en) 2016-05-10
US20140238826A1 (en) 2014-08-28
JP2014163219A (en) 2014-09-08
EP2769939A1 (en) 2014-08-27
PL2769939T3 (en) 2015-09-30

Similar Documents

Publication Publication Date Title
EP2921435B1 (en) Deflection device for objects and method for diverting objects
DE102017127147A1 (en) Flexible screw conveyor
EP3386293B1 (en) Conveyor belt installation for poultry
EP2711460A1 (en) Construction machine with material conveyor system
DE3227443C1 (en) Funnel piece of a single-screw extrusion press
DE102010030507B4 (en) Device for sorting
WO2013029961A1 (en) Chain link comprising an articulation section and a fork section separated by a slide section
EP2769938B1 (en) Drive shaft module for a construction machine
DE102006036243A1 (en) Feed screw for eccentric screw pump
DE102007057613A1 (en) Extruder screw for a screw extruder
EP2163496A2 (en) Roller conveyor with separate drive component
EP2769939B1 (en) Screw conveyor for a material conveying system of construction machine
EP2156743B1 (en) Mounting of guide track
WO2014090474A1 (en) Roll-type press
EP2897887B1 (en) Conveying roller having a head element
DE20305983U1 (en) Portable feed mixing unit with two vertically positioned mixing worms, driven by distributor gear positioned in line with drive train
DE102008015266A1 (en) Conveyor screw sections
DE102014108007B4 (en) Shaft flange of an agricultural harvester
EP2966349B1 (en) Discharge device for small sized bulk material
DE102008058304B4 (en) driving device
DE102022004864B3 (en) Device for separating feed material
WO2021165020A1 (en) Conveyor-belt drum with sliding regions
AT509669A1 (en) BELT CONVEYOR AND ON / OFF TONING DEVICE
WO2007085436A1 (en) Device for mixing or conveying an abrasive material
EP3641983A1 (en) Rotary indexing table with power-optimized drive

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20131118

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502013000517

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B65G0033240000

Ipc: B65G0033340000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: B23K 20/12 20060101ALI20140929BHEP

Ipc: B65G 33/34 20060101AFI20140929BHEP

INTG Intention to grant announced

Effective date: 20141017

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013000517

Country of ref document: DE

Effective date: 20150513

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 720391

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150515

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20150408

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150708

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150810

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150808

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150709

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502013000517

Country of ref document: DE

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

26 Opposition filed

Opponent name: CATERPILLAR INC.

Effective date: 20151229

R26 Opposition filed (corrected)

Opponent name: CATERPILLAR INC.

Effective date: 20151229

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

Ref country code: RO

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150408

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160229

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160222

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160229

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160229

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160222

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20170221

Year of fee payment: 5

Ref country code: DE

Payment date: 20170224

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20170221

Year of fee payment: 5

Ref country code: PL

Payment date: 20170130

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20170228

Year of fee payment: 5

REG Reference to a national code

Ref country code: DE

Ref legal event code: R064

Ref document number: 502013000517

Country of ref document: DE

Ref country code: DE

Ref legal event code: R103

Ref document number: 502013000517

Country of ref document: DE

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: CATERPILLAR INC.

Effective date: 20151229

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20170705

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Effective date: 20170705

REG Reference to a national code

Ref country code: AT

Ref legal event code: MA03

Ref document number: 720391

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170705

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150408